CI project forking

app/models/project_services/gitlab_ci_service.rb

@@ -59,6 +59,26 @@ class GitlabCiService < CiService
     end
   end
 
+  def register_fork(new_project, user_token)
+    params = {
+      id:                  new_project.id,
+      name_with_namespace: new_project.name_with_namespace,
+      web_url:             new_project.web_url,
+      default_branch:      new_project.default_branch,
+      ssh_url_to_repo:     new_project.ssh_url_to_repo
+    }
+
+    HTTParty.post(
+      register_fork_path, 
+      body: {
+        project_id: project.id,
+        project_token: token,
+        user_token: user_token,
+        data: params.to_yaml},
+      verify: false
+    )
+  end
+
   def commit_coverage(sha, ref)
     response = get_ci_build(sha, ref)
 
@@ -75,6 +95,10 @@ class GitlabCiService < CiService
     project_url + "?ref=" + project.default_branch
   end
 
+  def register_fork_path
+    project_url.sub(/projects\/\d*/, 'api/v1/forks')
+  end
+
   def status_img_path
     project_url + "/status.png?ref=" + project.default_branch
   end

app/services/projects/fork_service.rb

@@ -40,12 +40,18 @@ module Projects
             if project.save
               project.team << [@current_user, :master]
             end
+
             #Now fork the repo
             unless gitlab_shell.fork_repository(@from_project.path_with_namespace, project.namespace.path)
               raise 'forking failed in gitlab-shell'
             end
+
             project.ensure_satellite_exists
           end
+
+          if @from_project.gitlab_ci?
+            ForkRegistratorWorker.perform_async(@from_project.id, project.id, @current_user.private_token)
+          end
         rescue => ex
           project.errors.add(:base, 'Fork transaction failed.')
           project.destroy

app/workers/fork_registrator_worker.rb

+class ForkRegistratorWorker
+  include Sidekiq::Worker
+
+  sidekiq_options queue: :default
+
+  def perform(from_project_id, to_project_id, private_token)
+    from_project = Project.find(from_project_id)
+    to_project = Project.find(to_project_id)
+
+    from_project.gitlab_ci_service.register_fork(to_project, private_token)
+  end
+end